2 * Copyright (c) 1996, 1997
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
21 * Initial contribution from Francis Dupont (francis.dupont@inria.fr)
25 static const char rcsid[] _U_ =
26 "@(#) $Header: /tcpdump/master/tcpdump/print-igrp.c,v 1.20.2.1 2005/04/20 21:02:15 guy Exp $ (LBL)";
35 #include <tcpdump-stdinc.h>
39 #include "interface.h"
40 #include "addrtoname.h"
43 #include "extract.h" /* must come after interface.h */
46 igrp_entry_print(register struct igrprte *igr, register int is_interior,
47 register int is_exterior)
49 register u_int delay, bandwidth;
53 printf(" *.%d.%d.%d", igr->igr_net[0],
54 igr->igr_net[1], igr->igr_net[2]);
56 printf(" X%d.%d.%d.0", igr->igr_net[0],
57 igr->igr_net[1], igr->igr_net[2]);
59 printf(" %d.%d.%d.0", igr->igr_net[0],
60 igr->igr_net[1], igr->igr_net[2]);
62 delay = EXTRACT_24BITS(igr->igr_dly);
63 bandwidth = EXTRACT_24BITS(igr->igr_bw);
64 metric = bandwidth + delay;
65 if (metric > 0xffffff)
67 mtu = EXTRACT_16BITS(igr->igr_mtu);
69 printf(" d=%d b=%d r=%d l=%d M=%d mtu=%d in %d hops",
70 10 * delay, bandwidth == 0 ? 0 : 10000000 / bandwidth,
71 igr->igr_rel, igr->igr_ld, metric,
75 static struct tok op2str[] = {
76 { IGRP_UPDATE, "update" },
77 { IGRP_REQUEST, "request" },
82 igrp_print(register const u_char *bp, u_int length, const u_char *bp2 _U_)
84 register struct igrphdr *hdr;
86 u_int nint, nsys, next;
88 hdr = (struct igrphdr *)bp;
89 cp = (u_char *)(hdr + 1);
90 (void)printf("igrp:");
94 nint = EXTRACT_16BITS(&hdr->ig_ni);
95 nsys = EXTRACT_16BITS(&hdr->ig_ns);
96 next = EXTRACT_16BITS(&hdr->ig_nx);
98 (void)printf(" %s V%d edit=%d AS=%d (%d/%d/%d)",
99 tok2str(op2str, "op-#%d", IGRP_OP(hdr->ig_vop)),
102 EXTRACT_16BITS(&hdr->ig_as),
107 length -= sizeof(*hdr);
108 while (length >= IGRP_RTE_SIZE) {
110 TCHECK2(*cp, IGRP_RTE_SIZE);
111 igrp_entry_print((struct igrprte *)cp, 1, 0);
113 } else if (nsys > 0) {
114 TCHECK2(*cp, IGRP_RTE_SIZE);
115 igrp_entry_print((struct igrprte *)cp, 0, 0);
117 } else if (next > 0) {
118 TCHECK2(*cp, IGRP_RTE_SIZE);
119 igrp_entry_print((struct igrprte *)cp, 0, 1);
122 (void)printf(" [extra bytes %d]", length);
126 length -= IGRP_RTE_SIZE;
128 if (nint == 0 && nsys == 0 && next == 0)
131 fputs(" [|igrp]", stdout);